JPH0417111B2 - - Google Patents

Info

Publication number
JPH0417111B2
JPH0417111B2 JP58183356A JP18335683A JPH0417111B2 JP H0417111 B2 JPH0417111 B2 JP H0417111B2 JP 58183356 A JP58183356 A JP 58183356A JP 18335683 A JP18335683 A JP 18335683A JP H0417111 B2 JPH0417111 B2 JP H0417111B2
Authority
JP
Japan
Prior art keywords
lens
paint
outer periphery
concealing
coating
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP58183356A
Other languages
Japanese (ja)
Other versions
JPS6075364A (en
Inventor
Takao Inoe
Takahiro Matsuo
Yoichi Nakamura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP58183356A priority Critical patent/JPS6075364A/en
Priority to CA000464072A priority patent/CA1243270A/en
Priority to US06/654,669 priority patent/US4643911A/en
Priority to DE8484111451T priority patent/DE3484494D1/en
Priority to EP84111451A priority patent/EP0138114B1/en
Publication of JPS6075364A publication Critical patent/JPS6075364A/en
Publication of JPH0417111B2 publication Critical patent/JPH0417111B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/002—Processes for applying liquids or other fluent materials the substrate being rotated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/26—Processes for applying liquids or other fluent materials performed by applying the liquid or other fluent material from an outlet device in contact with, or almost in contact with, the surface
    • B05D1/265—Extrusion coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065—After-treatment
    • B05D3/067—Curing or cross-linking the coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00009—Production of simple or compound lenses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B29D11/00865—Applying coatings; tinting; colouring
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D1/00—Processes for applying liquids or other fluent materials
    • B05D1/40—Distributing applied liquids or other fluent materials by members moving relatively to surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/12—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/02—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a matt or rough surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/50—Multilayers
    • B05D7/52—Two layers
    • B05D7/54—No clear coat specified
    • B05D7/546—No clear coat specified each layer being cured, at least partially, separately

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、望遠鏡、カメラ、ビデオプロジエク
ター、テレビ等のレンズ特に樹脂レンズの外周隠
蔽塗料の塗装方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for coating lenses of telescopes, cameras, video projectors, televisions, etc., particularly resin lenses, with a coating for concealing their outer periphery.

従来例の構成とその問題点 従来、レンズの外周隠蔽塗料には、溶剤飛散型
及び、２液タイプの室温硬化型塗料が使用されて
おり、塗装方法も人手であり熟練が必要であつ
た。Conventional Structures and Problems Conventionally, solvent-splattered and two-component room-temperature-curable paints have been used as coatings for concealing the outer periphery of lenses, and the coating methods were manual and required skill.

すなわちレンズの光路にも塗料が付いてしまつ
たり、レンズの光路を触れられないために２度に
分けて塗装していた。さらに悪いことには、ただ
単に、光硬化性樹脂にカーボンと光増感剤を混合
しただけの光隠蔽性塗料では光硬化というものが
考え難く、塗装に一昼夜とか短かいものでも、数
時間という製造タクトであつた。これは、レンズ
のコストを上昇させた。又、生産数が少ない内は
それでも良いがレンズの大形化が、テレビの投写
型のものでは望まれ、レンズの樹脂化により軽量
化コスト低減として取り組まれつつある。このよ
うに、生産数が多くなると、レンズ外周の隠蔽塗
料の速硬化性の高いものへの要望が高まつてき
た。 In other words, the optical path of the lens was also coated with paint, and the optical path of the lens could not be touched, so it was painted twice. To make matters worse, it is difficult to imagine that light curing is possible with light-hiding paints that are simply a mixture of photocurable resin, carbon, and photosensitizers, and even if the painting process is short, such as one day and night, it can take several hours. The manufacturing tact was high. This has increased the cost of the lens. Although it is acceptable as long as the number of lenses produced is small, larger lenses are desired for projection-type televisions, and efforts are being made to make lenses made of resin to reduce weight and cost. As the number of lenses manufactured has increased, there has been a growing demand for fast-curing concealing paints for the outer periphery of lenses.

発明の目的 本発明の目的は、生産性が良く、しかも塗装特
性の優れた紫外線硬化塗料を用いたレンズ外周隠
蔽塗料の塗装方法を提供するものである。OBJECTS OF THE INVENTION An object of the present invention is to provide a method for coating a lens outer periphery concealing coating using an ultraviolet curing coating that is highly productive and has excellent coating properties.

発明の構成 本発明のレンズ外周隠蔽塗料の塗装方法は、少
くとも２面以上の異なる塗装外周を有するレンズ
の光路が汚れないよう回転中心が空洞であるレン
ズ支持用回転治具に取付けたレンズの外周に隠蔽
塗料を塗布し、その後に、回転させながら紫外線
を照射して塗料を硬化させることにより塗装の生
産性を高めたものである。Structure of the Invention The method for coating a lens outer periphery concealing paint of the present invention is to apply a lens periphery concealing paint to a lens that is attached to a rotating jig for supporting a lens having a hollow rotation center so as not to contaminate the optical path of a lens having at least two or more different painted outer peripheries. A concealing paint is applied to the outer periphery, and then UV rays are irradiated while rotating to harden the paint, increasing the productivity of painting.

実施例の説明 本実施例においては、レンズには第１図、第２
図に示した様な射出成形によつて得られた、アク
リル樹脂製のφ124レンズ１を用いた。外部又は
内部からの光の吸収及び隠蔽用塗料２をレンズの
光路以外の外周の方向の異なるＡ，Ｂ，Ｃ面に黒
色塗料を一般的な塗布方法、たとえばブラシまた
はゴムローラなどで塗布ししかも、それを紫外線
照射により硬化するものである。第３図には、レ
ンズを取り付けるレンズ支持用回転体３，４，
９，１０，１３，１４と、それを搬送コンベアに
乗せるパレント１１を示した。レンズ１を両側か
ら、レンズ有効部に出来るだけ触れないようレン
ズの外周端部で保持するために内部が空洞の支持
円筒３，４で支持している。３，４は１mm厚のア
ルミニウム円筒であり、レンズと接触する先端に
レンズにキズを付けないようにクロロプレンゴム
が施されている。又、支持円筒３は、レンズ凹面
の端部をおさえているために、支持することによ
り、レンズの中心と回転中心とが一致できるよう
にしてある。これにより全てのレンズ外周はラン
プから同一の距離にでき、膜質の均一化が図れ
る。支持円筒は回転軸１３，１４の受け台、９，
１０で支持されており、自由に回転するようにな
つている。又、回転軸１４は第４図のモータ１９
と連結チヤツク１８により連結する。又レンズ支
持円筒の外周には、テフロン製の円筒を取り付
け、バネ７，８によつてレンズ外周部と接近させ
ており、塗料の塗布時に塗料が有効レンズ面に到
らないようにしてある。第４図には反射ミラー１
７を有する紫外線ランプ１６のランプハウス部１
５と、モーター部１９とを示した。二点破線は、
レンズ支持部の想像図であり、ランプは冷却フア
ン２０で冷却することができると共にレンズ表面
の温度が上昇しないようオーク製作所製ブルーフ
イルター付き超高圧水銀ランプを用いた。第５図
には、コンベア２１によつて第３図に示したパレ
ツトが、所定の位置２２まで搬送され、ピストン
２３により第４図に示したランプハウスと、紫外
線もれ防止用のかみ合い部１２で密閉されてい
る。搬送と動作の硬化工程状態を示した。この状
態でモータが回転し、それに伴つてレンズが回転
し、50〜700rpmで回転している間にムラ無く硬
化させ、外周塗装部Ａ，Ｂ，Ｃを塗装することが
できるものである。塗料としては、少くとも１種
以上のポリエステルアクリレート１〜20wt％と
１種類以上のアクリレートモノマーと、カーボン
粉末１〜7wt％と、ガラスビーズ等の光散乱剤５
〜30wt％と、タルク等の光シヤヘイ用の充填剤
３〜30wt％を含有し、紫外線で硬化する光増感
剤を１〜10wt％の塗料であれば良い特に光散乱
剤が重要である。Description of the embodiment In this embodiment, the lenses are shown in Fig. 1 and Fig. 2.
A φ124 lens 1 made of acrylic resin and obtained by injection molding as shown in the figure was used. The paint 2 for absorbing and concealing light from the outside or inside is applied with a black paint to surfaces A, B, and C in different directions on the outer periphery of the lens other than the optical path, using a general coating method such as a brush or a rubber roller, and It is cured by irradiating it with ultraviolet rays. FIG. 3 shows lens support rotating bodies 3, 4, to which lenses are attached,
9, 10, 13, 14 and a parent 11 that places them on a conveyor. The lens 1 is supported from both sides by hollow support cylinders 3 and 4 in order to hold the outer peripheral edge of the lens so as not to touch the effective part of the lens as much as possible. 3 and 4 are aluminum cylinders with a thickness of 1 mm, and the tips that come into contact with the lens are coated with chloroprene rubber to prevent scratches on the lens. Further, since the supporting cylinder 3 holds down the end of the concave surface of the lens, by supporting it, the center of the lens can be aligned with the center of rotation. This allows the outer periphery of all lenses to be at the same distance from the lamp, making the film quality uniform. The support cylinder is a cradle for the rotating shafts 13, 14, 9,
10, and is designed to rotate freely. Further, the rotating shaft 14 is connected to a motor 19 in FIG.
and is connected by a connecting chuck 18. A Teflon cylinder is attached to the outer periphery of the lens support cylinder and brought close to the outer periphery of the lens by springs 7 and 8 to prevent the paint from reaching the effective lens surface when applying the paint. Figure 4 shows the reflection mirror 1.
Lamphouse part 1 of ultraviolet lamp 16 with 7
5 and the motor section 19 are shown. The two-dot dashed line is
This is an imaginary drawing of the lens support part. The lamp can be cooled with a cooling fan 20, and an ultra-high pressure mercury lamp with a blue filter manufactured by Oak Seisakusho was used to prevent the temperature of the lens surface from rising. In FIG. 5, the pallet shown in FIG. 3 is conveyed by a conveyor 21 to a predetermined position 22, and a piston 23 connects the lamp house shown in FIG. is sealed. The curing process status of conveyance and operation is shown. In this state, the motor rotates, and the lens rotates accordingly. While rotating at 50 to 700 rpm, the lens can be cured evenly and the outer peripheral coating parts A, B, and C can be coated. The paint contains at least 1 to 20 wt% of one or more polyester acrylates, one or more acrylate monomers, 1 to 7 wt% of carbon powder, and a light scattering agent such as glass beads.
The light scattering agent is particularly important, as long as it contains 30 to 30 wt% of a filler for light shearing such as talc, and 1 to 10 wt% of a photosensitizer that is cured by ultraviolet rays.

以上の様な方法及び装置によつて１分以内のタ
クトで、レンズ外周隠蔽塗料の塗装が可能とな
り、この方法で得られたアクリル製プラスチツク
レンズの塗膜性能は、膜厚10μ〜60μ、密着性は
優れており（ごばん目試験で100／100）、40℃90
％RHの環境下で200時間放置しても塗膜性能が
変わらないという、優れた塗膜を得ることができ
た。但し20μ以上の膜は重ね塗りにより硬化性の
優れた隠蔽膜を得ることができる。 Using the method and equipment described above, it is possible to coat the outer periphery of the lens with a concealing paint in a tact time of less than 1 minute. Excellent performance (100/100 in the eye test), 40℃90
We were able to obtain an excellent coating film that showed no change in coating performance even after being left in an environment of %RH for 200 hours. However, for films with a thickness of 20μ or more, a concealing film with excellent curability can be obtained by overcoating.

発明の効果 以上のように本発明は、従来数時間かかつてお
り、しかも熟練作業者しか出来なかつた、レンズ
外周隠蔽塗料の塗装を、レンズ光路に触れること
なく、短時間で得ることができるという点で、き
わめて工業上有利なものである。Effects of the Invention As described above, the present invention makes it possible to coat the outer periphery of a lens with a concealing paint in a short time without touching the optical path of the lens, which previously took several hours and could only be done by skilled workers. In this respect, it is extremely industrially advantageous.

【図面の簡単な説明】[Brief explanation of drawings]

第１図はレンズの片断面図、第２図は第１図に
おけるＡ部の拡大断面図、第３図は本発明の一実
施例のレンズ支持部及びパレツト部の半断面正面
図、第４図は同ランプハウス部の断面図、第５図
は同塗装装置の断面図である。 １……レンズ、２……隠蔽用塗料、３……支持
円筒（レンズ支持用回転治具）、１６……紫外線
ランプ。 FIG. 1 is a single sectional view of the lens, FIG. 2 is an enlarged sectional view of section A in FIG. The figure is a sectional view of the lamp house portion, and FIG. 5 is a sectional view of the coating device. 1... Lens, 2... Concealing paint, 3... Support cylinder (rotating jig for lens support), 16... Ultraviolet lamp.

Claims (1)

【特許請求の範囲】[Claims] １ 回転中心が空洞であるレンズ支持用回転治具
にてレンズのレンズ有効径の最外周部を支持した
後、前記レンズのレンズ有効径より外周部に隠蔽
塗料を塗布し、その後に回転させながら前記レン
ズに紫外線を照射して塗料を硬化させるレンズ外
周隠蔽塗料の塗装方法。1. After supporting the outermost periphery of the lens effective diameter of the lens with a lens support rotating jig whose center of rotation is hollow, a concealing paint is applied to the outer periphery of the lens from the lens effective diameter, and then while rotating A method for applying a lens outer periphery concealing paint, in which the lens is irradiated with ultraviolet rays to cure the paint.
JP58183356A 1983-09-30 1983-09-30 Painting method of paint for hiding outside circumference of lens Granted JPS6075364A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP58183356A JPS6075364A (en) 1983-09-30 1983-09-30 Painting method of paint for hiding outside circumference of lens
CA000464072A CA1243270A (en) 1983-09-30 1984-09-26 Method for forming light-shield coat on lenses
US06/654,669 US4643911A (en) 1983-09-30 1984-09-26 Method for forming light-shield coat on lenses
DE8484111451T DE3484494D1 (en) 1983-09-30 1984-09-26 METHOD FOR PRODUCING A LIGHT-OPERATING LAYER ON LENSES.
EP84111451A EP0138114B1 (en) 1983-09-30 1984-09-26 Method for forming light-shield coat on lenses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58183356A JPS6075364A (en) 1983-09-30 1983-09-30 Painting method of paint for hiding outside circumference of lens

Publications (2)

Publication Number Publication Date
JPS6075364A JPS6075364A (en) 1985-04-27
JPH0417111B2 true JPH0417111B2 (en) 1992-03-25

Family

ID=16134311

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58183356A Granted JPS6075364A (en) 1983-09-30 1983-09-30 Painting method of paint for hiding outside circumference of lens

Country Status (5)

Country Link
US (1) US4643911A (en)
EP (1) EP0138114B1 (en)
JP (1) JPS6075364A (en)
CA (1) CA1243270A (en)
DE (1) DE3484494D1 (en)

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US7081278B2 (en) * 2002-09-25 2006-07-25 Asml Holdings N.V. Method for protection of adhesives used to secure optics from ultra-violet light
US6851545B1 (en) 2004-03-23 2005-02-08 Caddy Corporation UVC conveyor belt system
JP5183754B2 (en) 2010-02-12 2013-04-17 キヤノン株式会社 Optical element

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US4332706A (en) * 1979-05-21 1982-06-01 Canon Kabushiki Kaisha Internal reflection suppressing coating material for optical glass
JPS58111901A (en) * 1981-12-25 1983-07-04 Haruchika Seimitsu:Kk Automatic painting device for edge surface of lens
DE3211364A1 (en) * 1982-03-27 1983-10-20 Veba-Glas Ag, 4300 Essen Process and apparatus for coating the outer surfaces of hollow glass articles

Also Published As

Publication number Publication date
EP0138114A2 (en) 1985-04-24
DE3484494D1 (en) 1991-05-29
CA1243270A (en) 1988-10-18
EP0138114B1 (en) 1991-04-24
EP0138114A3 (en) 1987-12-16
US4643911A (en) 1987-02-17
JPS6075364A (en) 1985-04-27

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